SI-4GW0A-001-00

General Safety Information

WARNING

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Before use, check the wheels to make sure that there are no bent or loose spokes, dents, scratches or cracks on the rim surface. Do not use the wheel if any of these problems are found.

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Do not use in combination with bottom link-type suspension forks. With these types of forks, the clearance between the hub axle and the brake shoes can change due to the operation of the suspension, so that when the brakes are applied, the brake shoes may touch the spokes.

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If the quick release mechanism is not used correctly, the wheel may come off the bicycle and serious injury could result. Read the Service Instructions for the quick release mechanism thoroughly before use.

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These wheels are designed for riding on paved surfaces. If the wheels are used on unpaved surfaces, the wheels may become bent or damaged, and accidents may result.

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Check that the wheels are fastened securely before riding the bicycle. If the wheels are loose in any way, they may come off the bicycle and serious injury may result.

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The hollow on the opposite side to the valve hole is an indicator for the amount of rim wear.If this hollow can no longer be seen, stop using the rim.

If you continue using the rim, it may break, and the bicycle may fall over and an accident may result.

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Obtain and read the service instructions carefully prior to installing the parts. Loose, worn, or damaged parts may cause injury to the rider.

We strongly recommend only using genuine Shimano replacement parts.

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Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.

CAUTION

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The tires should be inflated to the pressure indicated on the tires before use.

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Use rim tape which can withstand high pressures, otherwise the tires may suddenly puncture and come off, and severe injury may result.

NOTICE

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The Shimano R55HC (high performance) brake shoes use an aggressive compound designed with an emphasis on maximum performance in wet conditions, however they will cause accelerated rim wear.

Shimano accepts no responsibility for reduced rim life which might occur from using

R55HC brake shoes.

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Use of genuine Shimano spokes and nipples is strongly recommended. If genuine

Shimano parts are not used, the hubs or rims may become damaged.

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Before use, check that there are no pieces of metal or other foreign objects sticking to the brake pads. If any such items are present, they may cause damage to the rim when the brakes are applied.

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The nipples have large diameters and are easy to rotate in order to make it easier to increase the spoke tension. However, be careful not to overtighten the nipples when adjusting the spoke tensions. If the nipples are overtightened, damage to the rim may result.

(We recommended that you ask authorized bicycle dealers to make the adjustments.)

Technical Service Instructions

Note:

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If the wheel becomes stiff and difficult to turn, you should lubricate it with grease.

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Do not apply any oil to the inside of the hub, otherwise the grease will come out.

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The hollow on the other side of the valve from the hole is a guide for indicating the wear of the rim. If this hollow is no longer visible, the rim is at the end of its useful life.

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Special spoke wrenches are available as optional accessories.

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We recommend that you ask authorized bicycle dealers to adjust the spoke tensions if there is any initial play in the spokes and after the first 1,000 km of riding.

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Spoke protectors (CP-WH23) are also sold separately. Please ask your bicycle dealer for details.

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For maximum performance we highly recommend Shimano lubricants and maintenance products.

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Reflectors (manufactured by CATEYE) are also sold separately. Please ask your bicycle dealer for details.

Model number

RR-550-WUWSW

Specification

CPSC

Color

White

RR-550-WUASW AS Amber

RR-317-WUASW DIN Amber

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Parts are not guaranteed against natural wear or deterioration resulting from normal use.

Specifications

Model number

Rim size

Rim width

Spoke lacing

Lace the spokes as shown in the illustration.

(For front)

At the front, a radial assembly is used at both the left and right.

SI-4GW0A-001

(For rear)

At the rear, a tangent assembly is used at both the left and right.

WH-RS80-C50-CL

700C (622 × 15C)

20.8 mm

WH-RS80-C50-CL

Wheel

In order to realize the best performance, we recommend that the following combination be used.

Applicable tire size

Clincher tire

700C (19C – 28C)

21 – 28T Largest sprocket

This wheel can be used with 8-gear, 9-gear and 10-gear sprocket sets. (If using a 10-gear sprocket set other than for a junior bicycle, use the accessory 1-mm spacer.)

Refer to the Product Technical Information for details on combination with other parts such as chains and cassette sprockets.

For front

1000 – 1400 N

(224 – 314 lbf)

Spoke tension value

For rear

Right (sprocket) side

1250 – 1500 N

(280 – 336 lbf)

Left side

600 – 850 N

(134 – 190 lbf)

* These values should be used as a guide only.

Replacing the spoke

Hook the spokes through the hub as shown in the illustration to install them.

Spoke

Nipple

* Inner ring

* Hub cap

At the front, fit the heads of the spokes securely into the slots in the hub unit, otherwise damage may occur.

* Install the inner ring and the hub cap properly so that the inner ring is fit completely inside the tabs of the hub unit and the tabs of the hub cap are fit completely into the inner ring.

Installation of the HG sprockets

For each sprocket, the surface that has the group mark should face outward and be positioned so that the wide parts of the gear projections on each sprocket and the A part (where the groove width is wide) of the freewheel body are aligned.

A

Wide part ac-14T

● For installation of the HG sprockets, use the special tool

(TL-LR15) to tighten the lock ring.

●

To replace the HG sprockets, use the special tool (TL-LR15) and TL-SR21 to remove the lock ring.

Lock ring

The groove is wide at one place only.

Tightening torque:

30 – 50 N·m

{261 – 434 in. lbs.}

TL-LR15

Disassembly

Tool

(TL-SR21)

Sprocket spacers Lock ring

Replacement of the freewheel body

After removing the hub axle, remove the freewheel body fixing bolt (inside the freewheel body), and then replace the freewheel body.

Note:

Do not attempt to disassemble the freewheel body, because it may result in a malfunction.

Tightening torque:

35 – 50 N·m {305 – 434 in. lbs.}

* Service Instructions in further languages are available at : http://techdocs.shimano.com

Please note: Specifications are subject to change for improvement without notice. (English)

Freewheel body

Freewheel body fixing bolt

Disassembly

Freewheel body washer

10 mm Allen key

(TL-WR37)

Assembly

SHIMANO AMERICAN CORPORATION

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

SHIMANO EUROPE B.V.

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

SHIMANO INC.

3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

© Jul. 2010 by Shimano Inc. AWS. Printed by Malaysia.